Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556520738

Certificate GIA 2556520738

Diamond specifications and retailer prices

From $5,691 USD
As of October 30, 2026
Save $5,200 USD (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,561 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556520738. Listed at 18 retailers as of October 26, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.70
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556520738
Dimensions7.71 × 7.75 × 4.69 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
7.71 mm7.75 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556520738
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $7,033 USD|Low: $4,950 USD|High: $10,891 USD|Avg: $7,337 USD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$5,691 USD
Retailer 5$5,940 USD
Retailer 6$6,280 USD
Retailer 9$6,280 USD
Retailer 2$6,910 USD
Retailer 7$6,931 USD
Retailer 1$7,033 USD
Retailer 3$8,058 USD
Retailer 4$10,522 USD
Retailer 10$10,891 USD

37 data points across 10 retailers

18 retailers$5,691 USD to $10,891 USD

A
Cheapest Retailer
-
$5,691 USD
A
Retailer 2
-
$5,767 USD
View
A
Retailer 3
-
$5,934 USD
View
A
Retailer 4
-
$5,940 USD
View
B+
Retailer 5
-
$6,015 USD
View
B+
Retailer 6
-
$6,156 USD
A$9,471 AUD
View
B+
Retailer 7
-
$6,280 USD
View
Final sale: no returns
Retailer 8
-
$6,804 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$6,908 USD
View
Price last confirmed 31 days ago
Retailer 10
-
$6,910 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$6,931 USD
View
B+
Retailer 12
-
$7,033 USD
£5,538 GBP
View
B+
Retailer 13
-
$7,044 USD
View
Retailer 14
-
$7,851 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$8,058 USD
€7,674 EUR
View
B
Retailer 16
-
$10,522 USD
£8,285 GBP
View
B
Retailer 17
-
$10,891 USD
View
Most Expensive
NZ Jewellers
0e9bb4a0-df40-447b-bf38-7b3545a180d1 · Sep 28
$12,561 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from $5,691 USDSave up to $5,200 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.70ct Round
$5,691 USD